a b s t r a c tThis paper presents a new approach to enhancing feature extraction for low-quality ﬁngerprint images by adding noise to the original signal. Feature extraction often fails for low-quality ﬁngerprint images obtained from excessively dry or wet ﬁngers. In nonlinear signal processing systems, a moderate amount of noise can help amplify a faint signal while excessive amounts of noise can degrade the signal. Stochastic resonance (SR) refers to a phenomenon where an appropriate amount of noise added to the original signal can increase the signal-to-noise ratio. Experimental results show that Gaussian noise added to lowquality ﬁngerprint images enables the extraction of useful features for biometric identiﬁcation. SR was applied to 20 ﬁngerprint images in the FVC2004 DB2 database that were rejected by a state-of-the-art ﬁngerprint veriﬁcation algorithm due to failures in feature extraction. SR enabled feature extraction from 10 out of 11 low-quality images with poor contrast. The remaining nine images were damaged ﬁngerprints from which no meaningful features can be obtained. Improved feature extraction using SR decreases an equal error rate of ﬁngerprint veriﬁcation from 6.55% to 5.03%. The receiver operating characteristic curve shows that the genuine acceptance rates are improved for all false acceptance rates. Ó 2010 Elsevier B.V. All rights reserved.

YOU MAY ALSO FIND THESE DOCUMENTS HELPFUL

...﻿
The Methods of LatentFingerprint Discovery
Finding and Retrieving Latent Prints from a Crime Scene
Megan M. Anderson
Brevard Community College
Abstract
This paper explores the methods of latentfingerprint discovery the finding and retrieving of latent prints from a crime scene. Here we will review how to find a latent print using alternative light sources and what those light sources are. We will also review the surface characteristics of evidence and the purpose of sequential processing. Making sure that the rights steps are taken when processing fingerprints so such evidence is not destroyed. Also we will go over the fingerprint development techniques, each of their uses and processes in finding and retrieving the fragile prints such as brush and powder, superglue fuming, small particle reagent, machine paper technique and others. This paper examines the techniques taught from Mark R. Hawthrone and Ross M. Gardner teachings and training.
The Methods of LatentFingerprint Discovery
Finding and Retrieving Latent Prints from a Crime Scene
Everything we touch leaves a mark, an invisible unique, one of a kind pattern. These patterns are so unique that no two people have the same prints, not even identical twins. The patterns known as fingerprints identify who we are,...

...﻿Sherman Alexie
ENG 150 –
Critical Analysis Assignment
Fingerprints
Recently, I was introduced to a man named Sherman Alexie. See, what I liked about Sherman from the beginning was the dissimilarity we shared. Too often, as a society we get so caught up in the bait of commonality that we forget it’s the differences that make us individuals. His family was not like mine. The significant values that shape a young man’s life, like Sherman’s and mine, were founded on different life experiences and were respected on unfamiliar levels. I came to see he loved differently and for different reasons. He esteemed for different reasons and his perception on life was remarkable yet understated. Sherman had a way of seeing things… the realness he bestowed was astonishing, but more importantly, he was able to help me see differently too.
You’re asking, “Where did you meet this Sherman Alexie?” The answer to that question is difficult to state because I feel like I’ve known him my whole life, but I doubt he’d say the same of me. The Absolutely True Story of a Part Time Indian is a novel by Sherman Alexie written for anyone willing to read it. It displays his inner deepest thoughts through the story of a young man named Junior. The great thing about being introduced to a man through his work is that he reveals himself to you through nothing but the deepest and best thoughts; and Sherman had many.
Sherman Alexie was a Native American who grew up on...

...Question
My science fair project is called “Are Fingerprints Inherited?” I will try and determine if fingerprint patterns from biological siblings are inherited however, I will also have control so that I can compare the data. I am interested in finding the results of this because of me having an half brother and sister. I will use a table to take fingerprints and next to each fingerprint is a code so I don’t use names on the same page as the actual prints.Hypothesis
My hypothesis is that I think these fingerprint patterns will be inherited. I believe this because I have learned about heredity and genetics in school. Hair color, eye color and skin color all have to do with heredity and genetics. It has interested me if fingerprints are inherited because fingerprints can also be a form of identification. If they are inherited, it could determine what the child’s fingerprints could be.Method and Procedures
For this science experiment. I used the following, an ink pad, coded forms for fingerprints (biological and non-biological) consent forms that will keep the name and signature separate from the actual prints, folder for organizing purposes, human subjects ( biological and non-biological and all age groups) wipes for cleaning fingers, a magnifying glass , and research information to determine the three fingerprints...

...this hypothetical situation, you would go on to find out your team mates who you’ve been falling behind have been taking medical enhancements and steroids. If it were me in the situation, I would be completely appalled. You work just as much and even more, and all they have done is taken a medically enhancing pill that does the work for them. You would probably even feel pressured to take the enhancements yourself, considering it’s working so well for your team mates and they’re not working as hard. Any enhancement is unethical and unfair. Using such drugs would be an advantage that no one should have.
There are multiple reasons brain enhancement is wrong. One reason is that it is unnatural. Taking a pill or some other form of medication to make you more cognitively enhanced is very unnatural. Keim makes an argument against this that I will later address, but anything that alters your brain function in an unnecessary way is unnatural. Natural would be considered stimulating your brain by studying, researching, and even a crossword puzzle, not taking pills. Although natural is a relative term, and some may disagree with me, but I believe that the taking of medicine to enhance brain function is unnatural.
Now that I’ve declared the unnaturalness of the idea of brain enhancement, I’d like to address the society this would create. If this enhancement were to be legalized, initially it...

...through a central database? PeopleKey has the answer.
How it WorksPeopleKey attendance systems utilize biometric time clocks (fingerprint readers) in order to safely and conveniently record students' "in" and "out" times. First, students are enrolled into the system with a short PIN number, their name and their fingerprint template (an encrypted, mathematical representation of one’s fingerprint - not an image of thefingerprint itself). The entire enrollment process takes as little as a minute or two per student.
When a student arrives at school in the morning, he or she simply enters the PIN number and touches a finger on the sensor in order to verify his or her identity. A time stamp is saved on the fingerprint reader and automatically sent over a wired or wireless network to a PC running our Fingerlan biometric software. Fingerlan gathers the attendance data from your fingerprint readers in real time, across one or more locations, and saves it in a database where it can be queried. This allows administrators to see at a moment’s notice whether a student has signed in for the day, and whether he was on time or tardy. Reports can be run in order to calculate overall tardiness rates, or to assess how many times student “A” has been absent or tardy in recent weeks.
But the PeopleKey solution doesn’t stop there. If desired, the fingerprint readers can...